培養(yǎng)基中的微生物形態(tài)是怎么的？
發(fā)布時間：
2022-12-24
作者：
國內(nèi)做培養(yǎng)基比較好的公司
一微生物簡介
微生物：是一類肉眼看不見，有一定形態(tài)結構，能在適宜環(huán)境中生長繁殖的細小生物的總稱。
微生物也像動物、植物一樣，具有生命，它可以由小長大，可以“生兒育女”，繁殖后代，也可以“吃”進食物，排出廢物，它也會死亡。也就是說生命體（無論動物、植物）所有特征它都具有，只不過是它的個子特別特別的小，小到我們根本無法用肉眼看到它。只能借助顯微鏡才能看到它。當然，有的大型微生物我們用肉眼也可以看到，如蘑菇、木耳等，盡管它們比較大，但我們也把它歸于微生物這一類。微生物這個家庭非常龐大，成員也很多，根據(jù)它們的一些特點，我們把它分成細菌、放線菌、真菌和病毒四大類。
二培養(yǎng)基
培養(yǎng)基是供微生物生長、繁殖、代謝的混合養(yǎng)料。由于微生物具有不同的營養(yǎng)類型，對營養(yǎng)物質(zhì)的要求也各不相同，加之實驗和研究的目的不同，所以培養(yǎng)基的種類很多，使用的原料也各有差異，但從營養(yǎng)角度分析，培養(yǎng)基中一般含有微生物所必需的碳源、氮源、無機鹽、生長素以及水分等。另外，培養(yǎng)基還應具有適宜的pH值、一定的緩沖能力、一定的氧化還原電位及合適的滲透壓。 瓊脂是從石花菜等海藻中提取的膠體物質(zhì)，是應用最廣的凝固劑。加瓊脂制成的培養(yǎng)基在98～100℃下融化，于45℃以下凝固。但多次反復融化，其凝固性降低。 任何一種培養(yǎng)基一經(jīng)制成就應及時徹底滅菌，以備純培養(yǎng)用。一般培養(yǎng)基的滅菌采用高壓蒸汽滅菌
三視頻操作步驟：
四作畫
1.選取圖片
2.運用移液槍、接種環(huán)畫出輪廓
3.在輪廓范圍內(nèi)選取相應顏色的微生物進行作畫
五成果展示
1. Introduction of microorganism
Microorganism: is a kind of invisible to the naked eye, has a certain morphological structure, can grow and reproduce in suitable environment of small organisms.
Microorganisms, like animals and plants, have life. They can grow up from small to small, have children, reproduce, eat food, discharge waste, and die. That is to say, an organism (whether animal or plant) has all its characteristics, except that its size is so small that we can't see it with the naked eye. It can only be seen with a microscope. Of course, some of the large microorganisms we can see with the naked eye, such as mushrooms, fungus, and so on, although they are relatively large, but we also classify it as microorganisms. The family of microorganisms is very large and has many members. According to their characteristics, we classify them into four categories: bacteria, actinomycetes, fungi and viruses.
Two. Culture medium.
The medium is a mixture of nutrients for the growth, reproduction and metabolism of microorganisms. Because microorganisms have different nutritional types, different requirements for nutrients, and different experimental and research purposes, there are many kinds of media and different raw materials used. But from the nutritional point of view, the media generally contains the carbon, nitrogen, inorganic salts and raw materials necessary for microorganisms. Long element and moisture. In addition, the medium should also have a suitable pH value, a certain buffer capacity, a certain redox potential and appropriate osmotic pressure. Agar is a colloidal substance extracted from seaweed and other seaweed. It is the most widely used coagulant. The agar medium was melted at 98~100 C and solidified below 45 C. However, the solidification of many times is reduced. The achievement of any culture medium should be sterilized in time for pure culture. Sterilization of general medium by autoclave sterilization
Three. Operation steps
Four. Painting
1. select pictures
2. draw the outline with the pipette gun and the inoculation ring.
3. select the corresponding color microorganisms in the outline area to paint.
Five. Results show